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Gary Hindman's Custom Model 113 and Model 114

Both guns are bulk fill. They have a silver finish on the barrel and the CO2 tube. Stocks have been redone to a natural finish. Simmons .22 3x9x32 AO silver scope and rings are connected using IA mounts

Model 113- Predator Polymags .177- 5-shot groups @ 25 yds. =.440" C-C - Avg. velocity 697 fps 25 shots ( high 721 fps)

Model 114 - JSB Exacts .22 - 5-shot groups @ 25yds. = .54O" C-C- Avg.velocity 654 fps. 25 shots (high 660 fps)



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The biggest factor in making ME not linearly proportional to barrel length...

August 12 2011 at 3:16 PM

Steve in NC  (Login pneuguy)
Troll, Banned User or Assorted Delinquent
from IP address 74.162.158.79


Response to As you say, only the barrel length info:

...is the fact that pressure usually drops rapidly as the charge expands behind the pellet.

So the energy contributed by the last inch of bore is generally much less than the energy contributed by the first inch, simply because the pressure - and therefore the push - behind the pellet is higher near the breech than near the muzzle.

Steve


    
This message has been edited by pneuguy from IP address 74.162.158.79 on Aug 12, 2011 3:18 PM


 
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